#VU118373 Missing Authentication for Critical Function in Siemens products - CVE-2025-40816

Vulnerability identifier: #VU118373

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2025-40816

CWE-ID: CWE-306

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
LOGO! 12/24RCE
LOGO! 12/24RCEo
LOGO! 230RCE
LOGO! 230RCEo
LOGO! 24CE
LOGO! 24CEo
LOGO! 24RCE
LOGO! 24RCEo
SIPLUS LOGO! 12/24RCE
SIPLUS LOGO! 12/24RCEo
SIPLUS LOGO! 230RCE
SIPLUS LOGO! 230RCEo
SIPLUS LOGO! 24CE
SIPLUS LOGO! 24CEo
SIPLUS LOGO! 24RCE
SIPLUS LOGO! 24RCEo

Software vendor:
Siemens

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected devices do not conduct certain validations when interacting with them. A remote attacker on the local network can manipulate the devices IP address, leading to denial of service (DoS) condition.

Install updates from vendor's website.

• https://cert-portal.siemens.com/productcert/html/ssa-267056.html